Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: 2010 Mercury 40 HP EFI ELPT4 looses power at WOT after an hour

Posted by wing15601 on 03/27/15 - 7:22 AM
#2

After all that I would guess something electrical is breaking down when it gets hot enough. If you run the boat at midrange rpm's while avoiding full throttle does this still happen? It seems with your description of the problem, the mechanic is wasting your time (not his, he's getting paid) trying to recreate the problem in the shop.